夏玉米巧施追肥,是夺取丰产的一项重要措施。夏玉米追肥应采取先轻、中重、后补的施肥原则。轻施苗肥:夏玉米从出苗到拔节期,主要是根茎叶等营养器官的生长时期,这个时期叶面积较小,生长慢,消耗养分少,在施足底肥或种肥多,而幼苗生长又健壮的情况下,苗期可以不追肥,如果底肥施的不多或种肥不足,苗期也应施少量追肥。一般在定 Summer corn Qiao Shi top dressing, is an important measure to seize high yield. Summer corn top-dressing should take the first light, medium and heavy, after the principle of fertilization. Light application of Miao: Summer corn from the emergence to the jointing stage, mainly vegetative organs such as roots and leaves of the growth period, leaf area during this period is small, slow growth, less nutrient consumption, at the end of application of fertilizer or seed fertilizer, and seedling growth In the case of robust, the seedling stage can not topdressing, if the end of the application of fertilizer or lack of fertilizer, seedling stage should also be applied a small amount of dressing. Generally set